c#中使用odbc連接Oracle數據庫

Question

我正在嘗試用 c# 編寫一個工具，該工具將連接到 Oracle 數據庫，並且我需要使用 ODBC。

如果我使用以下代碼：

using System.Data.Odbc;
string str1 = "DATA SOURCE=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=abcd.efgh.net)(PORT=1521)))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=service_name)));USER ID=user_id;PASSWORD=qassword";
OdbcConnection coon = new OdbcConnection();
coon.ConnectionString = str1;
coon.Open();

我收到錯誤消息：

An unhandled exception of type 'System.Data.Odbc.OdbcException' occurred in System.Data.dll
Additional information: ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified

即使我將連接字符串更改為：

string str2 = "Driver={Oracle in OraClient12home1};DATA SOURCE=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=abcd.efgh.net)(PORT=1521)))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=service_name)));USER ID=user_id;PASSWORD=qassword";

我收到相同的錯誤消息。 所以我想問題不在於“Driver = {...}”部分？ 但是我在“數據源”部分做錯了什么？

謝謝你。

Answer 1

嘗試這個

        using System.Data.Odbc;

        String connectionString = "Dsn=HP5ODBC;uid=system;pwd=manager";          
        OdbcConnection coon = new OdbcConnection();
        coon.ConnectionString = connectionString;
        coon.Open();
        MessageBox.Show(coon.State.ToString());

Answer 2

嘗試

Driver={Oracle in OraClient12home1};DBQ={(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=abcd.efgh.net)(PORT=1521)))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=service_name)))};UID=user_id;PWD=qassword";

代替

Driver={Oracle in OraClient12home1};DATA SOURCE=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=abcd.efgh.net)(PORT=1521)))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=service_name)));USER ID=user_id;PASSWORD=qassword";

請參閱使用 Oracle ODBC 驅動程序：連接字符串和/或Oracle 在 OraClient11g_home1 連接字符串中的格式